Fabrication of functionally gradient ultrafine-grained WC-Co composites

被引：7
作者：
Yuan, Yigao [1 ]
Ding, Jianjun [1 ]
Wang, Yankun [2 ]
Sun, Weiquan [2 ]
机构：
[1] Donghua Univ, Coll Mech Engn, Shanghai 201620, Peoples R China
[2] Shanghai tool works Co Ltd, Shanghai 200093, Peoples R China
来源：
APPLIED MATERIALS AND TECHNOLOGIES FOR MODERN MANUFACTURING, PTS 1-4 | 2013年 / 423-426卷
关键词：
Ultrafine-grained cemented carbides; Carburization; Compositional gradient; eta-phase; CEMENTED TUNGSTEN CARBIDE; MIGRATION; SIZE;
D O I：
10.4028/www.scientific.net/AMM.423-426.885
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The carburizing heat treatments of ultrafine-grained WC-Co composites with sub-stoichiometric carbon content were carried out, and the microstructures of ultrafine-grained WC-Co carbides before and after treated were characterized by means of scanning electron microscopy and X-ray diffraction. The results show that the functionally gradient ultrafine-grained WC-Co hardmetals with a Co depleted surface and not comprising the eta-phase can be fabricated by carburizing heat treatment. After heat treatment, WC grain sizes in materials are still at the ultrafine grade.
引用
收藏
页码：885 / +
页数：2
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